Seaming machine



Sept. 25,1923. 1,469,024

A. SCHROEDER SEAMING MACHINE Filed April 12 1920 5 Sheets-Sheet l Sept. 25 1923. 1,469,024

A: SCIZHROEDER SEAMING MACHINE Filed April 12 1920 5 S heets-She et 2 J*///////////r/ lz lal Sept. 25 1923. 1,469,024 A. SCHROEDER SEAMING MACHINE Filed April 12 1920 5 Sheets-Sheet 5 Sept. 25 1923. 1,469,024

A. SCHROEDER SEAMING MACHINE Filed April 12; 1920 5 Sheets-Sheet 4 A. SCHROEDER SEAMING MACHINE Sept. 25, 1923. 1,469,024

Filed April 12 1920 5 Sheets-Sheet 5 Patented Sept. 25, 1923.

UNITE s'r A'rEs mien-r race.

ANTHONY sonnonnmacr onnvnnnlxm; orirdfassrenoa or ONE-HALF TO JAMES MERLEFINNEY, or CLEVELAND, OHIO.

SE-AMING MACHINE.

Application fiied'ii rn 12, 1920. Serial No. 3713946.

One object of the invention is to increase the output of machines ofthis character. 2 Another object of the invention is to re- 7 duce the number of operatives required to operate machines of this character at full.

capacity and to simplify the required manual operationswhereby relatively cheap or unskilled labor may be employed tooperate them. 1

Another object of the invention is to provide improved means for supporting, ope-rating and cQntrollingQtheseam forming rolls of machines of thischaracter, wherebythe' seaming operations -may be rapidly complete'd, the heads'securely fixed to the drum bodiesand the rolls returned to their ino'ptheir respective operations.

erativepositions upon the completion of my invention. relates from the following de'-' scription taken in connection with the ac'-' companying drawings.

Referring to the drawings, Fig. :1 is an elevational' view of a seaming machine embodying my invention.

F ig..2 is a horizontal section ofv the machine on the line 22 of Fig. 1. I

Fig. 3 is a plan view of theseaming rolls and mechanism for operating and control- A ling them.

Fig. 1 is an elevational viewof theparts shown in Fig. 3.

Fig. 5 is a sectional view on the line 55.

of Fig. 3. v V

Fig. 6 is a sectional view on the line 6-. 6

of Fig. 3.

Fig.

of Fig. 3. g

Fig. 8 is a'section on the line 8-8 of Fig. 7.

7 is a sectionalview on the line 7 7 Fig. 9 isa sectional viewon the line 9-5-9 of Fig. 3. l

Fig. 10 s a section' on the line .99 of Fig. 3 showing the operation of the'first seaming froll.

Fig. 11 is a section on the line 11l1of F ig. 3 prior to its engagement with the partially formed seam.

Fig; 12 is asection on the 1ine.11-11 of Fig. 3 showing theyfinalsean'iingroll. inpo- V sitlon for completing the seam between the.

head and drum body.

Fig. 13 is a. detail View.

Fig. 14 is an elevation of another form of seaming machine embodying my invention. a

Fig. 15 is aside elevation of the machine shown in Fig. 14.

l6 'isa top plan viewo-f the seaming rolls and toggle members forming part of the machine shown in Figs. 14 and 15." I

Fig. 17 is a fragmentary-view'of the machine, showing the, parts illustrated inFig.

16 in side elevation. I

. Fig. 18 is anend View of the parts shown in Fig. 16.. i

Fig. 19 is a rear endview of the parts shown in Fig. 17.

FigQQO is a section on the line 20- 20 of Fig. 16.,

Fig. 2l' is a Fig. 16.

section on V the line 21-21 7 of Fig. 221s atransversesection through the '7 elements shown in Fig. 16.

In the drawings, ll'ndicatesas an entirety I a. frame. 'The' frame 1 may comprise a tab le or bed 2, supported on suitable legs 2?, and

a pair of uprightmembers 3. connected at their upper ends bya cross member 4; The

members 3 may be spaced toreceive between them the largest sized drum desired to be madeon themachine. v The frame 1 may also. be provided with a member?) extending laterally from one-side of the machine.

The'ele-ments of the frame, just referred to, ma be integrally-connected or otherwise former At its remote or outer end, the ex- .tensionmember 5 is provided with an up right shaft hanger 6, provided with bear ings 7. The bearings 7 and bearings .8 provided on the adjacent end of the" table2, support a shaft 9, the purpose of which will be late-rset forth.

- 10 indicates a vertlcalshaft mounted in I suitable bearings provided centrally of the table 2. 11 indicates a gear fixed to the shaft 10. The gear 11 is preferablya bevel gear and is driven by a bevel pinion (not shown) on the inner end of the shaft 9. 12 indicates as an entirety the driving means for the shaft 9. The driving means 12 preferably comprise a pulley 12 loosely moun trally, the base member 15 is formed with an opening through which the shaf 10 and hub member thereon extends. The base member'15 may be provided with an integral. radially eXten ling bracket 16, the purpose of which will be'later'set'forth.

17 indicates a support connected to the upper end of the shaft 10 and arranged to receive the drum body indicated at A, and the head. indicate at a, to be seamed thereto.- The support 17 is of less diameter than the drum body or drum head in order that the seaming operations. to be later described, may be carried out without danger. of engagement with the support 1?. The support 17 is'preferably detachably Connected to the shaft 10 so that it may be removed and a support of a different diameter substituted according to the size of the drum to be made at anytime. 7

18 indicates a plate adapted to engage the upper end of the drum body A and nold it and the heatL a firmly on the support 17,

The plate 18 is fixed to the lower end of a rod 19 slidably mountedin guides 20, which are provided on the cross member 1, and bearings 21 provided on cross piece 22. The cross piece 22 is connected at its opposite ends to the upright frame members 3. T he rod 19 preferably comprises a sleeve 19 having internal screw threads and a screw thread member 19 fitting therein, whereby the rod 19 can be lengthened or shortened to accommodate it to different sized drums. The sleeve 19 and member 19 are fixed or secured together by nuts 19 19. Near its upper end the sleeve 19 is provided with a grooved collar 23 in the groove of which are disposed the bifurcations on the end of a lever 24. The lever 2-1 is pivoted in any well known manner, preferably on a bracket 24:,

on the cross member 4 and counterbalanced at its outer end, as shown at 25. 26 indicates devices for operating the lever 24: about its pivot to raise and lower the rod 19. The lever is raised to disengage the plate from the drum (see dotted lines in Fig. 1) and thus'permit the positioning of a drum body on the support 17 and its removal therefrom; it is lowered to move the plate 18 into on gagement with the drum and thus clamp it irmly on the support 17 and hold the drum thereon during the rotation of the support and the forming of the seam. The devices 26 preferably comprise a pair of connected links 27, 27 connected at their remote ends to the lever 24f and a rock shaft 28, respectively. 7 through an arm 28 to a rod 29 which is operated' by means 30, such as compressed air operated piston,'controlled by a lever 30. The collar 23 is preferably slidably Tlie rock shaft is connected mounted on'the sleeve 19 and normally held against the nut 19 by a coiled spring 19 interposed between it anda collar 19" provided on the sleeve 19 The'spring 19 serves to yieldingly clamp the plate 18 against the drum body A.

The cross piece 22 is preferably so connected to the frame membersd and 1 that it can be adjusted to different positions according to the sizeof drum to be'seamed. As these supportin and adjusting devices form no part of my present invention; a detail descriptionthereof will not be neces sary. p i p i 81 indicates aplurality of seaming rolls. I'have provided my apparatus with two rolls 31, 31 which operate successively to effect and complete the operations of seaming head a to the body A ofa drum. The peripheries of the rollsg81 ,'31 are for illustrative purposes shown as being shaped to form what is known as a double seam, this being the preferred form of construction and the one mostly used in the manufacture of metallic receptacles. Each roll 81 31 is loosely mounted on a vertical shaft 32 suitably supported at its opposite ends in a pair of arms extending from the free end of a slide block 3 1. The slide blocks 3d are mounted in suitable guides 35, whereby they may be moved toward the drum body A and into engagement with the flanges of the body and head a. therefor, and then returned to their inoperative positions. The guides are preferablyformed integrally with a frame 36, which is supported on and rigidly secured to the bracket 16.

37 indicates as an entirety means con nected to the slide blocks 3 1 for operating and contro ling the seaming rolls 31*, 31".. Of

thesemeans, 38 indicates a shaft mounted in s As shown in the drawings, the cams 50, are flat and when rotatoperating elements of which are connected to the shaft 38 and pulley 40, whereby the shaft is driven by-the latter when the clutch is connected or thrown in. The movable ele- 'ment of the clutch 46 is connected-by links tween its ends the shaft 49 is provided with a worm gear 49, which is driven by a Worm 5O fixed'to the shaft 38. 50 ,50, indicate a pair of cams fixed to the shaft 4E9, eachpreferably arranged in av vertical plane cutting the central longitudinal axis of the ad j acent block 34. The cams 50 50 are set angularly on the'shaft 49, relatively to each other, to effect successive operation of the rolls 13, 31 and permit their. withdrawal from engagement-with the rolled flanges, as will be later set forth. 51, 51*, indicate sets of toggle members interposed between the slide'blocks 34 and the cams 50350, respectivelyand arranged to be actuated by the latter. Each setof toggle members 51, 51 preferably comprise a rocking element 52, loosely mounted on a transverse shaft 52, and a link 53 pivotally connected at its opposite ends to the rocking element 52 and adjacent slide block 34. That end of the rocking element 52 which is engaged by the adjacent cam may beprovided with a roller 54 to reduce the friction between the cam and rocking member. 7 V 1 7 As shown in the drawings, the slide blocks 34 are formed with arecess to receive a removable connecting member 55 towhich the link 53 is connected. The connecting. mem-' ber 55 is secured in the recess of theslide block by any suitable means, that shown comprising cap screws56 (seeFig. 3) This form of construction provides a long bearingfor the link 53 on the pivot between it and the connecting member 55.

' the edges of edengage the rear end of the rocking members 52 to successivelyrock them about the shaft 52 and thereby operate through the links 53 to move the slide blocks 34: outwardly or toward the drum body A to position the rolls 31 31*,carried thereby in operative position. The cams 50, 50 are shaped to cause this operation, to then maintain them in operative position until their respective seamfolding operations are completed and to then-permit their withdrawal to inoperative position. The cam 50? is preferably shaped to move the adjacent roll 31 forward and maintain it in close proximity to the'body A soxthat as soon as the roll 31 has completed its operation, it may be moved into "operative position without theloss of j time. To effect the withdrawal of the rolls 31, 31 I prefer to provide a pair of coiled tension springs 57, one for each set of toggles:

As shown, each spring is connected at one end to a stationary part of the .framef36, preferably the upper free endof an arm 58"; its opposite end isconnected to the forward end of the adjacent rockingmemb er 52, preferably by means of a hook member 59. The springs 57 are so arranged that when the cams 50?, 50", operate the rocking members 52, from thepositions shown in Figs. .9 and 11 to that shown in Figs'ZLOand 12, respectively, they will be put under tension enablingthem to move the rocking members'52.

andithrough them the blocks 34c and rolls 31 31?, back to the starting or in'operativeposition.

' The operation of the apparatus maybeset forth asfollows. j

The rolls 31%, 31*, are arranged in the inoperative position as shown in Figs53, 9

and 11. A head a is first placed on thesupporting plate 17 and on the headc is placeda body A. A second head a is preferably .47 and throws in the clutch 46 to operate the shaft 38, which in turn drives the cross shaft 1'9. At the time the shafts 110 and 49 are connected to their respective drive mechanisms, the rolls 31 31*, are in their inoperative posit ons and ready to be moved forplaced on the upper end of the body A and the clamping plate, is brought down into ward under theiaction of the earns 50% 50. i

This position of the roll 31 and, the toggle members connected thereto and the cam 50 for operating the toggle members 52 is shown in Fig. 9. Asthe cam 50 rotates it moves these parts to the position'shown' in Fig. l0,whereuponthe flanges of the head a and body A, (which arelbeing rotated at lie this time by theshaft 19), will, be folded 1 together and relative to the body .A as shown at a in FigsplOand 11. The cam50 is shaped to maintainthe roll 31? in. engage-. ment with thefianges sufiiciently long to complete this portion of the double seaming operation.

At the end of this operation the rocking element'52 is released from the i cam 50 and under the influence of the spring 57 it and the adjacent block-34c and roll 31 are; moved rearwardly tothe posi tion shown in ilig. 9. Likewise. as the cam 50 rotates, its operative portion engages the rocking element 52 of the toggle members spend through thenr'and the adjacent block 34: moves theroll3l =from the position shown in Fig, llto the position shownzin Fig. 12, forengagement with the partly 1 folded flanges.v As a; result of such engagement theroll 31 operates to fold the v head and body flanges relative to each other and body A asshown in Fig. 12. As shown in this latter figure, the cam 50" is shaped to first move the roll 31 relatively close to the body A to roll the flanges upwardly and inwardly and then to move'the roll closer to the body A the effect of which is to compress the folded sections of the flanges together into intimate contact, thus completing the double seam.

At the end of the last described operation, the toggle members 51 are released by the cam and they then are moved to the inoperative position by the adjacent spring 57.

The cams 50 50, are so arranged angularly on the shaft 49 that the second operation above described follows immediately after the completion of the firstoperation, as already set forth, the cam 50 being preferablv shaped and arran ed to move the .i L t) roll 31* forwardly while the roll 51 is operating, see the eccentric portion designated 50", and then maintain it in close proximity to the drum, see the concentric portion marked 50, in order that the time required for completely double seaming a head a to a body A may be reduced to the shortest period of time possible.

59 indicates as an entirety means for automatically releasing the clutch members -16 to disconnect the shaft 38 from its driving means 40. These means are preferably provided in order that the rolls 31, 31 can be held in an inoperative position while the drum body A, after the completion of a double seaming operation, is being inverted on the plate 17 or the drum is being removed and a new body Aand head a are being positioned thereon. Of these means, 60 indicates an arm fixed to the shaft 48. 61 indicates a latch pivoted upon one side of the arm 60 near its free end. The nose of the latch 61 extends'forwardly and is disposed in the path of movement of a pin 61 fixed'to and extending laterally from one side face of the cam 62 indicates a tension spring connected at its opposite ends to the arm and latch 61 and operating to maintain the latch in the position shown in Figs. 11 and 12. 63 indicates a stop carried by the arm and arranged in position to be engaged by the tail of the latch 61. As the cam 50" rotates anticlockwise, the pin 61 will engage the latch 61 and swing it about its pivot until its tail engages the stop 63; thereupon, the further movement of the pin 61 acting through the latch 61 and stop 63, will swing the arm 60 and rock the shaft 48 in a rearward direction, thus releasing the clutch 46 (see Fig. 13). The elements just referred to are arranged for co-operation afterthe seaming operation is completed.

Figs. 14 to 22, inclusive, illustrate a slightly modified form of my invention parinuicated at 17 ably mounted in overhead bearings 63 carried by a standard 6 and driven by the power mechanism indicated as an entirety at 63 while the plate 17, which engages In this with and supports the lower head a and V drum body A, is slidableendwise upwardly and downwardly, so as to clamp the drum against the plate 18 and release it therefrom. The plate 17 is preferably raised and lowered bv a suitable lever mechanism,

In such a construction,t-hat is one wherein the upper head'engaglng plate 18 is driven, I prefer to so arrange the seaming rolls and their operating devices that they will operate upon the flanges of the head and the drum body at the upper end thereof.

Referring to those figures, 65 indicates a support or bracket preferably formed integral with the standard 61-. 36 indicates a frame mounted on the support 65 and formed with 'a pair of parallel guides in which are slidably mounteda pair of blocks 34: carrying seaming rolls'8l 31, re spectively. 51, 51 indicate sets of toggle members, each interposed between the adjacent slide block 34: and a stationary abutnient66, fixed in any desired manner at the rear end of the'frame 36'. Each set of toggle members preferably comprise a pair of links 67 68, pivotally connected together at their inner ends, as shown at" 69, and pivoted at their outer ends to theadjacent blocks 34, and abutment 66. The pivot connections for the inner and outer ends of the links 67, 68, may be of any preferred 7 form.

70 indicates as an entirety means for operating the toggle members 51, 51 Of these means 71, 71, indicate a pair of arms depending from the support 65 and frame 36 (see Fig. 19) and formed at their lower ends with openings which form bearings for a rock shaft 72.

73 indicates "a sleeve shaft surrounding a portion of the shaft 72 and rotatably mounted in the opening of the adjacent arm 71. 74, 74., indicates a pair of cranks the hubs of which are secured to the shafts 73, 72, respectively, by set screws 75. 76, 76, indicates a pair of rods for connecting the cranks 74, 7 with the toggle members 51, 51, respectively. As shown, each rod 76, 76 is pivotally' connected at one end to the adjacent crank by a. pintle 77, and at its opposite end it is preferably pivotally connected to the pivot pin 69 between the 70 secured to and driven by a shaft 10" suitany desired manner to the outer or free ends of the shafts 72, 73, respect vely,

whereby the latter may be rocked independently of each other.

Endwise movement of the shafts 72 and 73 in their bearings and relative to each other is prevented preferably by the following devices, to wit, a collar 78 fixed to the shaft 72 and engaging the outer side of the arm 71; a collar 79 fixedto the shaft 73 and I engaging the outer side of the arm '71; a

collar 80 fixed to the shaft 72 and engaging the outer end of the sleeve shaft 7 3; and a spacing device 81 between the crank 74 and inner side of the arm 71.

The rolls 31 31"., are similar'in shape to the rolls 31?, 31F, respectively, and are operated successively in a like manner by means of the levers 78, 7 8*; I V

' I have found by experience that a relatively heavy pressure may be applied upon the head and body flanges to form double seams by or through the seaming rolls when the latter are operatedby toggle members.

Accordingly I am enabled, in the use of my metal than was heretofore possible on machines of similar size and strength.

To those skilled in the art to'which this invention relates many alterations in construction and widely ditferingembodiments and applications of my invention will suggest themselves without departing from the V spirit and scope thereof. My disclosures and description herein are purely illustrative and are not intended to be in any sense limiting.

What I. claim is:

1. In apparatus of the class described, the

combination with a support on which flanged barrel bodies and heads are adapted to rotate, of a pair of rolls eachslidably mounted on said support and shaped to fold. the flanges of the barrel bodies and heads relative to each other to form a seam 'or joint, pairs of toggle members'for operating said rolls, and drivencams each engaging one member of each pair of toggle members for controlling the operation thereof.

2. In apparatus of the class describedthe combination with a support on which flanged barrel bodies and heads are adapted to rotate, of a pair of rolls each slidably mounted on said support and shaped to fold the body and head flanges relative to each; other to form a seam or joint, pairs of ,toggle members for. operating said rolls,

driven cams each engaging one .memberof each pair oftoggle members for controllingthe operation thereof, andmeans for stop-.

ping the operation of the cams at theend of theseaming operat1on..

3. In apparatus of the class described,the I combination with a support on flanged barrel bodies and heads are adapted to rotate, of a pair j of rolls each slidably mounted on said support, and shaped to fold the, body and head flanges relative toeach other to form a seam or joint, pairs of toggle members for operating said rolls, driven cams each engaging one member'of each pair of toggle members for controlling th'eIo-perwhich ation thereof, meansjforstopping the oper V ation of the cams at the end of the seaming operation, and means for returning the v toggle members and rolls tion. V I

a t. In apparatus of the class described, the combination-with a support onwhich barrel bodies and heads therefor-are. adaptedfto' rotate, of-apair ofrolls each slidably mounted on said support and shaped to fold the body and head: flanges to form scams or joints, pairs of toggle members for. operating said rolls, devices'for moving said pairs to starting posif of toggle members, and means operated-by one of said devices for stopping them at the end of each seaming, operation; r

5. In apparatus of the class describedthe combination with a support for ffianged drum bodies and heads therefor, of apair of rolls shaped'to'fold the flanges of :a body;

and head relative to each. other to form a seam, sets of toggle members connected to the supports for said rolls. means normally acting on said member to. maintain them in inoperative position, a shaft, apalr of cams on said shaft arranged to engage said toggle members to operate them, whereby said rolls are moved into engagement with ins the-flanges of the bodyand head to fold.

them into, a seam.

6. 111 apparatusof the class described, the combination with a. support for. flanged drum bodiesand heads therefon'of a pairv of rolls each slidably mounted upon said support atoneisi'de of its axis and shaped to foldthe flanges of a body and head rela- 1 tive to each" other to form a seam,'pairs' of toggle members for operating the supports for said rolls, a shaft disposed in parallel relationship to the pivots ofsaid toggle a members. and a pair of cams secured to said shaft in alignment with said toggle members and engaging therewith to actuate them 7 in co-operative relation, and means for driving said shaft.

7. in apparatus of the class described, the combination with a frame on which barrel bodies and heads are adapted to rotate, of a pair of rolls mounted on supports slidable on said frameand shaped to fold the body and head flanges to form seams, pairs of a toggle members for moving the roll supports to position therolls for operation, each pair of toggle members comprising a rocking element pivoted intermediate its ends and a link connected at its opposite ends to one end of said rocking element and the adjacent roll support, and means engaging with the other end of each rocking element for operating said pairs of toggle members.

8. In apparatus of the class described, the combination with a frame on which barrel bodies and heads are adapted to rotate,

of a pair of, rolls mounted on supports slidable on said frame'and shaped'to fold the body and head flanges to form seams, pairs of toggle members for moving the roll supports to position the rolls for operation, each pair of toggle members comprising a rocking element pivoted intermediate its ends and a link connected at its opposite ends to one end of said rocking element and the adjacent roll support, and a cam engaging with the other end of said rocking element, whereby said pairs of toggle members are operated. V

9. In apparatus of the class described, the combination with a frame on which barrel bodies and heads are adapted to rotate, of a pairof rolls mounted on supports slidable onsaid frame and shaped to fold the body and head flanges to form seams pairs of toggle members for moving the roll supports toposition the rolls for operation, each pair of toggle members comprising a rocking element pivoted intermediate its ends and a link connected at its opposite ends to one end of said rocking element and the adjacent roll support, a cam engaging with the other end of each rocking element, whereby said pairs of toggle members are operated in one direction, and separate means for returning said pairs of toggle members to starting po-' sition.

10. In apparatus of the'class described,

the combination with a frame on which barrel bodies and heads are adapted to rotate,

of a pair of rolls mounted on supports slidable on said frame and shaped to fold the ho ly and head flanges to form seams, pairs of toggle members for moving the roll supports to position the rolls for operation,each pair of toggle members comprising a rocking element pivoted intermediate its ends and a link connected at its opposite ends to one end of said rocking elementand the adjacent roll support, a driven cam engaging with the other end of each rocking element, whereby the pairs of toggle members are operated, and means operated by one of said cams for. stopping their operation at the end of each seaming operation. v a 11. In apparatus of the character described, the combination with a support for flanged barrel bodies and heads, of a pair of rolls shaped to fold the flanges of a barrel body and head relative to each other to form a seam, pairs of toggle members connected respectively-to said support andone of said rolls for operating the latter, a shaft, cams on said shaft, each engaging one member of the adjacent pair of toggle members, and means for driving said shaft.

12. In apparatus of the character described, the combination with a support for flanged barrel bodies and heads, of a pair of rolls shaped to fold the flanges of?! barrel body and head relative to each other to form a seam, a shaft, apair of cams on said shaft, toggle members connected to the scribed, the combination with a support for flanged barrel'bodies and heads, of 2, pairs of rolls shaped to foldthe flanges ofa bar rel body and head relative to each other to form seam, a shaft, a pairof cams on said shaft, toggle members connected to the supports for said rolls and arranged to be operated by said cams in succession, means for driving said shaft, and means controlled by, one of said cams for throwing out said driving means as soon as both rolls complete their operation.

In testimony whereof I affix my slgnature.

ANTHONY soHRoE ERQ 

